Derive Debug and Clone for access types

Author: phil-opp

src/access.rs

@@ -5,15 +5,18 @@ pub trait Readable {}
 pub trait Writable {}
 
 /// Zero-sized marker type for allowing both read and write access.
+#[derive(Debug, Copy, Clone)]
 pub struct ReadWrite;
 impl Readable for ReadWrite {}
 impl Writable for ReadWrite {}
 
 /// Zero-sized marker type for allowing only read access.
+#[derive(Debug, Copy, Clone)]
 pub struct ReadOnly;
 
 impl Readable for ReadOnly {}
 
 /// Zero-sized marker type for allowing only write access.
+#[derive(Debug, Copy, Clone)]
 pub struct WriteOnly;
 impl Writable for WriteOnly {}